Doree Tucker said she couldn't believe her eyes when she pulled up to a public library and found 14-year-old Adriana Cisneros sound asleep on a bench near the front door.

"I was surprised when I saw her, but then I knew it was a young girl because I touched her and I said, 'Honey, are you alright?'" Tucker told only WPBF 25 News' Chris McGrath. "She was scared, she was crying, she wanted to go home."

Palm Beach County School District officials said Cisneros didn't take the bus home from Spanish River High School on Monday. And after being unable to reach either of her parents by phone, she started to make the seven-mile trek home on foot, McGrath reported. But she never made it.

Tucker took her own teen daughter to school after seeing the report on WPBF, then decided to take the matter into her own hands.

"Because I have a 17-year-old daughter, and if something happened to her, if she went missing, I'd want people to go try to look for her," she said.

Tucker drove up and down Yamato Road, in and out of shopping plazas and residential neighborhoods, then tried the library.

"I'm just so happy it turned out the way it did," said Tucker, who called 911 and waited for police to arrive after she found the girl.